43440422 has 24 divisors (see below), whose sum is σ = 71735160. Its totient is φ = 19673280.

The previous prime is 43440413. The next prime is 43440433. The reversal of 43440422 is 22404434.

43440422 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19022 + ... + 21182.

It is an arithmetic number, because the mean of its divisors is an integer number (2988965).

Almost surely, 2^43440422 is an apocalyptic number.

43440422 is a deficient number, since it is larger than the sum of its proper divisors (28294738).

43440422 is a wasteful number, since it uses less digits than its factorization.

43440422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2228 (or 2205 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 23.

The square root of 43440422 is about 6590.9348350594. The cubic root of 43440422 is about 351.5318490229.

Adding to 43440422 its reverse (22404434), we get a palindrome (65844856).

The spelling of 43440422 in words is "forty-three million, four hundred forty thousand, four hundred twenty-two".